Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 68 for “"3D scene"”.
-
CAD Model-Based 3D Scene Reconstruction
Accurate scene reconstruction from an image or a video is essential for various applications in robotics and augmented reality. One common method involves retrieving the best-matching CAD model for each observed object from a database and aligning it with the corresponding input. This technique …
-
Generative 3D scene modeling: algorithm and applications
The ability to generate realistic and functional 3D scenes at scale is becoming increasingly important across domains such as agriculture, autonomous driving, immersive gaming, and robot learning. However, manually constructing such environments is prohibitively expensive and often introduces …
-
Towards controllable and consistent 3D scene editing
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
-
Articulated 3D Scene Graphs from Egocentric Vision
… typically approach building metric-semantic scene representations from the robot’s own sensors and cameras. However, these “first person” maps inherit the robot’s own limitations due to its embodiment or skillset, which may leave many aspects of the environment unexplored. For example, the …
-
Scaling 3D Scene Perception via Probabilistic Programming
Understanding and interpreting the 3D structure of the world is a central challenge in artificial intelligence. Our physical world is 3D, yet our AI systems often “see” that world through pixels and images. In order to build truly intelligent AI systems, we must go beyond pixels and images and …
-
Underwater Refractive Camera Calibration and 3D Scene Reconstruction
… focuses on refractive camera calibration and 3D reconstruction. It starts with investigating geometric models and calibration methods for dome-port camera systems, then introduces an open-source refractive Structure-from-Motion (SfM) solution that integrates refraction throughout the …
-
Enhancing 3D Scene Graph Generation with Multimodal Embeddings
3D Scene Graphs are expressive map representations for scene understanding in robotics and computer vision. Current approaches for automated zero-shot 3D Scene Graph generation rely on spatial ontologies that relate objects with the semantic locations they are found in (e.g., a fork is found in a …
-
The robot's vista space : a computational 3D scene analysis
… structures they are talking about, and what scene elements they are going to manipulate. This thesis focuses on the analysis of a robot's vista space. Mechanisms for extracting relevant spatial information are developed which enable the robot to recognize in which place it is, to detect the …
-
LARGE-SCALE NEURAL 3D SCENE RECONSTRUCTION, RENDERING, AND BEYOND
This thesis advances neural 3D reconstruction into a scalable and robust process for real-world applications. While techniques like NeRF and 3D Gaussian Splatting (3DGS) show promise, they face challenges in scalability, robustness to imperfect camera poses, and consistency across distributed …
-
3D scene and object parsing from a single image
The term 3D parsing refers to the process of segmenting and labeling the 3D space into expressive categories of voxels, point clouds or surfaces. Humans can effortlessly perceive the 3D scene and the unseen part of an object from a single image with a limited field of view. In the same sense, a …
-
Towards Reinforcement-Learning-based Robot Navigation with 3D Scene Graphs
… of RL models guiding autonomous agents, we use 3D Scene Graphs (3DSGs) as a map representation. Previous work has shown that RL policies based on offline 3DSGs produce promising results in simulation, and this work takes initial steps towards extending these findings to 3DSGs produced online by …
-
Towards Self-Supervised Object Representations and 3D Scene Graph Based Navigation
3D Scene Graphs are powerful hierarchical representations of environments that combine spatial and semantic information into multiple levels of abstraction. 3D Scene Graphs are useful for a wide range of planning tasks in robotics that benefit from high-level semantic knowledge, and also capture …
-
Build realistic and interactive 3D scene simulation from in-the-wild videos
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
-
Alive Scene: Participatory Multimodal AI Framework for Collective Narratives in Dynamic 3D Scene
This thesis introduces "Alive Scene," an online participatory platform for recording dynamic 3D environments and building collective interpretations of objects, events, and atmospheres within them. For instance, a user can browse a recording of a room and describe objects or events to locate them; …
-
Hydra: A Spatial Perception Engine for Constructing and Optimizing 3D Scene Graphs in Real-time
3D scene graphs have emerged as a powerful map representation for robotics. Scene graphs encode spatial and semantic concepts at multiple levels of abstraction as nodes in a graph, and use edges to represent relationships. Such representations offer an efficient way to model diverse environments, …
-
Dynamic Scene Editing via Semantically Trained 3D Guassians
Image-based 3D scene reconstruction continues to be a challenge as it involves solving both the sufficient 3D representation problem and the 3D reconstruction itself. One approach to tackle the rendering problem is 3D Gaussian Splatting because of its potential to produce fast and realistic renders …
-
Gaussian Splatting Device-Architecture Co-Design for Accelerated Physical AI Inference and Reasoning
… robotics, autonomous driving, and XR/AR, demand 3D scene representations that are simultaneously photorealistic, memory-efficient, and computationally lean. Gaussian Splatting has established itself as the state-of-the-art technique for 3D scene representation, delivering photorealistic rendering …
-
Infrastructure for modeling and inference engineering with 3D generative scene graphs
… using a rich abstract representation of 3D scene geometry called a scene graph. However, there remain several challenges in the practical implementation of scene graph models, including human-editable specification, visualization, priors, structure inference, hyperparameters tuning, and …
-
Recognition, Mining, Synthesis and Estimation (Rmse) for Large-Scale Visual Data Using Multilinear Models
… video mining, image-based rendering, and 3D scene modeling. In object recognition, we present a general framework for dimensionality reduction using Datum-as-Is representation. Our approach works directly on the multi-dimensional form of the data (matrix in 2D and tensor in higher …
-
Image registration and its application to computer vision : mosaicing and independant motion detection
… a single composition that represents part of a 3D scene. This is useful for many different applications, including virtual reality environments and movie special effects.
Page 1 of 4